This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. pertaining to causation

"• To identify a direct and thus causational relationship between teachers and students, all other factors impacting student achievement, including out-of-school factors, would have to be controlled, resulting in a process that would cost more money and time than the state can fund."

causation